January 21 is generally a great time to visit Oslo. While there is a slight chance of rain (26%), showers are usually brief. Expect comfortable -1°C weather. Oslo is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Oslo
Currency
NOK
kr Norwegian krone
Language
Norwegian Nynorsk
+2 more
Driving
Right side
Connect
Most of Oslo is covered by 5G. Most of t...
Safety
Very High Safety
GPI: 1.465
Oslo Weather Forecast for January 21
"Cold & Crisp. Expect average highs of -1.4°C. 26% chance of snow."
What to Wear in Oslo in January
Based on historical data for January 21, Oslo typically experiences temperatures between -6.5°C and -1.4°C. We recommend packing heavy coat, scarf, gloves to stay comfortable. With a 26% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Oslo
Smart Suitcase
- Heavy Coat
- Scarf
- Gloves
Average High
-1.4°C
Daytime Peak
Average Low
-6.5°C
Nighttime Low
Feels Like
-5.6°C
🥶 Slightly colder
Snow Chance
26%
Avg 1.6mm if it snows
Snowfall
1.3 cm
~26% chance
Pressure
1012.8 hPa
High volatility
Oslo Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
~ Expect variable conditions. Have flexible plans and pack for multiple weather scenarios.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 400 min to burn
Type III-IV
🟡 600 min to burn
Type V-VI
🟢 1000 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
-3.4°C
Dry air
Heat Stress
Low
No heat warning
😣 Best outdoor time:
Midday (11 AM - 3 PM) when warmest
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Norway
Flight Traffic
Busy
75/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~275
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Oslo
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
08:55
☀️ Noon
12:29
🌇 Sunset
16:03
⏱️ Daylight
7h 7m
Wind Speed
12.5 km/h
Gentle breeze
Sunshine
2.4 hrs
Direct Sun (Cloud-free)
Humidity
86%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Oslo
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Oslo
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟢 Moderate
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Rapid pressure changes detected. High risk for meteosensitive people.
Mild discomfort possible for arthritic conditions.
Fish are active due to pressure changes.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Oslo on January 21 averages -1.4°C with a 26% precipitation probability. Wedding/Outdoor Event Score: 4/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Oslo Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
January 27
-0.4°C • 23% rain
Score
11
January 14
-0.4°C • 24% rain
Score
10
January 15
-0.4°C • 26% rain
Score
10
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (January 21) in other destinations
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📍 Is Oslo Worth Visiting on January 21?
Planning a trip to Oslo on January 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year offers a bracing seasonal atmosphere averaging -1.4°C with a 26% historical precipitation risk.
✈️ Travel Logistics: Approximately 275 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 7 vaccinations are recommended for Norway, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 2°C (polar plunge). Wave conditions are generally lake-like with heights around 0.28m.
📊 Historical Extremes: The hottest January 21 recorded in the last 30 years saw temperatures hit 6°C in 2020, while the coldest dropped to -20.4°C in 2016.